A forced unloading drill bucket

Abstract

A forced soil unloading drill bucket, including a drill bucket body, a drill bucket bottom door, a door opening device, and a soil unloading device. The drill bucket bottom door is located at the lower port of the drill bucket body, and one end of the drill bucket bottom door is provided with a lock. The lock is matched with the bucket door hook of the door opening device. The other end of the bottom door of the drilling bucket is hinged with the drilling bucket body by the bucket door hinge. The door opening device includes a push-down mechanism and a door-opening mechanism arranged on the drill bucket body. During the downward movement of the mechanism, after the door-opening mechanism opens the bottom door of the drilling bucket, the push-down mechanism breaks away from the door-opening mechanism and can continue to move down. The drill bucket has the advantages of good soil unloading effect, can eliminate the impact force on the equipment during the unloading process of the drilling rig, reduce energy consumption, and improve the reliability of the equipment.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and relates to a drilling machine, in particular to a drilling bucket for forced soil unloading, and also relates to a drilling machine using the drilling bucket. Background technique [0002] On multifunctional rotary drilling rigs, drilling buckets are often used for drilling. There is a door at the bottom of the ordinary drilling bucket, and there are cutting teeth on the door for cutting soil. The middle of the drilling bucket is a hollow drill barrel to accommodate the soil cut by the cutting teeth. There is a square head on the drill bucket for connecting with the drill pipe, and a mechanism for opening the bucket door. The mechanism includes a push rod, bucket door hook, hinge, etc. for opening the bucket door. When working, the drilling rig lowers the hollow drill bucket into the hole on the ground through the drill pipe; the power head drives the drill bucket to rotate and...

AI Technical Summary

Problems solved by technology

Although the drill bucket can solve the problem that the clay is not easy to fall off in the drill bucket and the soil cannot be unloaded during the rotary excavation operation in the cohesive soil layer to a certain extent, but after the bottom door of the drill bucket is opened by the door opening mechanism, due to the unloading of the soil plate It is connected with the bottom door. The opening of the bottom door is limited to a small angle, which is not conducive to unloading soil. Open further, still do not overcome the drawback of existing drilling bucket soil unloading method, on the other hand, in the drilling bucket cutting earth process, soil can enter in the upper drilling bucket of soil unloading plate through the gap and circular hole of unloading soil plate, Will affect the use of the drill bucket

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